#app span {
  font-size: 18px;
  display: inline-block;
  padding: 10px 0;
}
#app div {
  width: 10vw;
  height: 4vh;
  margin-top: 10px;
}
#app div button {
  width: 4.5vw;
  outline: none;
  height: 4vh;
  font-weight: bold;
  font-size: 15px;
}
#app div input {
  outline: none;
  width: 9vw;
  height: 3vh;
  margin: 5px 0;
}
